From 5b9f97fc9b10ded09a844935f7cd0d33e5d2e4d6 Mon Sep 17 00:00:00 2001
From: John Hodge <tpg@mutabah.net>
Date: Fri, 27 Aug 2010 19:00:50 +0800
Subject: [PATCH] NTFS Driver work (index headers)

---
 Modules/Filesystems/NTFS/attributes.h | 38 ++++++++++++++++
 Modules/Filesystems/NTFS/common.h     |  2 +
 Modules/Filesystems/NTFS/dir.c        |  1 +
 Modules/Filesystems/NTFS/index.h      | 65 +++++++++++++++++++++++++++
 4 files changed, 106 insertions(+)
 create mode 100644 Modules/Filesystems/NTFS/attributes.h
 create mode 100644 Modules/Filesystems/NTFS/index.h

diff --git a/Modules/Filesystems/NTFS/attributes.h b/Modules/Filesystems/NTFS/attributes.h
new file mode 100644
index 00000000..671a36e7
--- /dev/null
+++ b/Modules/Filesystems/NTFS/attributes.h
@@ -0,0 +1,38 @@
+/*
+ * Acess2 - NTFS Driver
+ * By John Hodge (thePowersGang)
+ * This file is published under the terms of the Acess licence. See the
+ * file COPYING for details.
+ *
+ * attributes.h - MFT Attribute Types
+ */
+#ifndef _ATTRIBUTES_H_
+#define _ATTRIBUTES_H_
+
+typedef struct
+{
+	Uint64	ParentDirectory;	//!< Parent directory MFT entry
+	Sint64	CreationTime;	//!< Time the file was created
+	Sint64	LastDataModTime;	//!< Last change time for the data
+	Sint64	LastMtfModTime;	//!< Last change time for the MFT entry
+	Sint64	LastAccessTime;	//!< Last Access Time (unreliable on most systems)
+	
+	Uint64	AllocatedSize;	//!< Allocated data size for $DATA unnamed stream
+	Uint64	DataSize;	//!< Actual size of $DATA unnamed stream
+	Uint32	Flags;	//!< File attribute files
+	
+	union {
+		struct {
+			Uint16	PackedSize;	//!< Size of buffer needed for extended attributes
+			Uint16	_reserved;
+		} PACKED	ExtAttrib;
+		struct {
+			Uint32	Tag;	//!< Type of reparse point
+		} PACKED	ReparsePoint;
+	} PACKED	Type;
+	
+	Uint8	FilenameType;	//!< Filename namespace (DOS, Windows, Unix)
+	WCHAR	Filename[0];
+} PACKED	tNTFS_Attrib_Filename;
+
+#endif
diff --git a/Modules/Filesystems/NTFS/common.h b/Modules/Filesystems/NTFS/common.h
index 6ed0ac6c..598120d2 100644
--- a/Modules/Filesystems/NTFS/common.h
+++ b/Modules/Filesystems/NTFS/common.h
@@ -12,6 +12,8 @@
 #include <acess.h>
 #include <vfs.h>
 
+typedef Uint16	WCHAR;
+
 // === STRUCTURES ===
 /**
  * In-memory representation of an NTFS Disk
diff --git a/Modules/Filesystems/NTFS/dir.c b/Modules/Filesystems/NTFS/dir.c
index c3a90682..37661e82 100644
--- a/Modules/Filesystems/NTFS/dir.c
+++ b/Modules/Filesystems/NTFS/dir.c
@@ -7,6 +7,7 @@
  * dir.c - Directory Handling
  */
 #include "common.h"
+#include "index.h"
 
 // === PROTOTYPES ===
 char	*NTFS_ReadDir(tVFS_Node *Node, int Pos);
diff --git a/Modules/Filesystems/NTFS/index.h b/Modules/Filesystems/NTFS/index.h
new file mode 100644
index 00000000..f45d8975
--- /dev/null
+++ b/Modules/Filesystems/NTFS/index.h
@@ -0,0 +1,65 @@
+/*
+ * Acess2 - NTFS Driver
+ * By John Hodge (thePowersGang)
+ * This file is published under the terms of the Acess licence. See the
+ * file COPYING for details.
+ *
+ * index.h - Index Types
+ */
+#ifndef _INDEX_H_
+#define _INDEX_H_
+
+#include "attributes.h"
+
+typedef struct
+{
+	Uint32	EntryOffset;
+	Uint32	IndexLength;
+	Uint32	AllocateSize;
+	Uint8	Flags;
+	Uint8	_reserved[3];
+} PACKED	tNTFS_IndexHeader;
+
+typedef struct
+{
+	Uint32	Type;
+	Uint32	CollationRule;
+	Uint32	IndexBlockSize;
+	Uint8	ClustersPerIndexBlock;
+	Uint8	_reserved[3];
+	tNTFS_IndexHeader	Header;
+} PACKED	tNTFS_IndexRoot;
+
+typedef struct
+{
+	union {
+		struct {
+			Uint64	File;	// MFT Index of file
+		} PACKED	Dir;
+		/**
+		 * Views/Indexes
+		 */
+		struct {
+			Uint16	DataOffset;
+			Uint16	DataLength;
+			Uint32	_reserved;
+		} PACKED	ViewIndex;
+	} PACKED	Header;
+	
+	Uint16	Length;	//!< Size of the index entry (multiple of 8 bytes)
+	Uint16	KeyLength;	//!< Size of key value
+	Uint16	Flags;	//!< Flags Bitfield
+	Uint16	_reserved;
+	
+	/**
+	 * \brief Key Data
+	 * \note Only valid if \a Flags does not have \a INDEX_ENTRY_END set
+	 * \note In NTFS3 only \a Filename is used
+	 */
+	union {
+		tNTFS_Attrib_Filename	Filename;
+		//TODO: more key types
+	} PACKED	Key;
+} PACKED	tNTFS_IndexEntry;
+
+#endif
-- 
2.20.1